Multiple choice

Directions: Choose the correct article from the given options to fill in the blank.

John travelled by _______ air.

  1. the

  2. a

  3. an

  4. No article
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When talking about modes of transport like 'by air', 'by bus', 'by train', or 'by sea', no article is used. This is called the zero article. We say 'travel by air' not 'travel by the air' or 'travel by an air'. The rule applies to means of transport and communication.

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